Transformer Testing Capacitor
The first line of defence against destructive voltage surges — protecting transformers and critical high-voltage equipment from transient overvoltages before damage can occur.
Transformer Testing Capacitor
During transformer testing, the inductive nature of the test object draws heavy reactive current that strains the test supply and distorts measurements. Transformer Testing Capacitors are connected to compensate this inductive current — stabilising the test circuit, reducing the VA burden on the test source, and ensuring results reflect true transformer conditions.
Who Is It For?
Transformer OEMs
Manufacturers conducting routine and type tests on new transformers before dispatch where test supply compensation is critical for accurate readings.
In-House Testing & Maintenance Teams
Plants and utilities running periodic health checks and insulation diagnostics on installed transformers, without sending units to an external test lab.
Key Benefits
Compensating Inductive Current During Transformer Testing
Why Is A Testing Capacitor Needed?
Without Testing Capacitor
High reactive current burden
Test supply must deliver both active and reactive current. VA demand is high, voltage regulation suffers, and test results may be unreliable or require uprated and expensive test equipment.
With Testing Capacitor
Compensated, accurate test circuit
Reactive inductive current is supplied locally by the capacitor. Test source sees only the active component VA burden drops, voltage holds steady, and insulation test readings are precise and repeatable.
Validate your transformers with confidence.
Talk to our engineers to select the right testing capacitor for your transformer voltage class, test frequency, and KVAR requirement.
